Drill quickly and accurately through reinforced concrete and hard stone with the Carat Brilliant EB05142020 diamond core bit. Thanks to specialized tt segments, you start drilling smoothly and precisely into tough materials without wandering. The laser-welded segment design delivers exceptional durability and strength during demanding wet core drilling tasks with active water cooling. Featuring a 51 mm drilling diameter and a usable length of 420 mm, it lets you extract clean core holes for plumbing and drainage pipes through thick structural walls. The standard 5/4" unc connection mounts seamlessly onto your compatible diamond core drill machine.